摘要: #include<iostream>using namespace std;class Base1{ public: virtual void display() const=0;};class Base2:public Base1{ public: void display() const;};v 阅读全文
posted @ 2023-04-19 14:24 不会JAVA的小袁 阅读(18) 评论(0) 推荐(0)
摘要: #include<iostream>using namespace std;class Base{ public: ~Base();};Base::~Base() { cout<<"Base destructor"<<endl;}class Derived:public Base{ public: 阅读全文
posted @ 2023-04-19 14:11 不会JAVA的小袁 阅读(14) 评论(0) 推荐(0)
摘要: #include<iostream>using namespace std;class Base1{ public: virtual void display() const;};void Base1::display() const{ cout<<"Base1::display()"<<endl; 阅读全文
posted @ 2023-04-19 13:55 不会JAVA的小袁 阅读(16) 评论(0) 推荐(0)
摘要: #include<iostream>using namespace std;class Complex{ public: Complex(double r=0.0,double i=0.0):real(r),imag(i) {} friend Complex operator+(const Comp 阅读全文
posted @ 2023-04-19 13:42 不会JAVA的小袁 阅读(17) 评论(0) 推荐(0)